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Tread plate, also known as checker plate and diamond plate, is a type of metal stock with a regular pattern or lines on one side as a decoration. These products are ...
[8] [19] Tom Lincir, founder of the Ivanko Barbell Company, has encountered 45-pound (20.4 kg) plates weighing as little as 38 pounds (17.2 kg), or as much as 59 pounds (26.8 kg). [20] Plates can be weighed, and the equipment marked (using a paint pen or other permanent marker) with the true weight. [21]
Manufacturers' Standard Gauge for Sheet Steel is based on an average density of 41.82 lb per square foot per inch thick, [11] equivalent to 501.84 pounds per cubic foot (8,038.7 kg/m 3). The older United States Standard Gauge is based upon 40 lb per square foot per inch thick.
The kilogram is the only standard unit to include an SI prefix (kilo-) as part of its name. The gram (10 −3 kg) is an SI derived unit of mass. However, the names of all SI mass units are based on gram , rather than on kilogram ; thus 10 3 kg is a megagram (10 6 g), not a * kilokilogram .
The weights are in denominations of 7 pounds (corresponding to a unit known as the clip or wool-clip), 14 pounds (stone), 56 pounds (4 stone) and 91 pounds (1 ⁄ 4 sack or woolsack). [ 18 ] [ 19 ] The 91-pound weight is thought to have been commissioned by Edward III in conjunction with the statute of 1350, while the other weights are thought ...
This would make the name checker plate older than diamond plate. A historical search for "checkered plate" or "checker plate" may give better results than looking for "diamond plate". This also is assuming the origin is American or British. There are German, French, Italian innovations, that could have originated this form of non slip plate.
Gusset plates are used to connect beams and columns together or to connect truss members. They can be either the only way of connecting the beam and columns or they can be used with bolts and welds. Gusset plates are therefore used in most metal weight-bearing structures, but the material and size of the gusset plate varies based on the structure.
Bending of plates, or plate bending, refers to the deflection of a plate perpendicular to the plane of the plate under the action of external forces and moments. The amount of deflection can be determined by solving the differential equations of an appropriate plate theory .